Less than half (48%) of UK motorists know the rules for using smart motorways, a new survey suggests.
The government is to review the safety of smart motorways, following an investigation by the Telegraph.
Drivers are avoiding using the open hard shoulder on all lane running smart motorways, new research has revealed.
Drivers on smart motorways across the country will be subject to new rules which could see them face new fines and penalty points.
Motorists who drive in closed lanes on smart motorways will soon be liable for an automatic £100 fine and three penalty points.